| 测量冲击压缩下绝缘材料电阻率技术的一个改进 |
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| 引用本文： | 古成钢,谢盘海,王金贵,经福谦.测量冲击压缩下绝缘材料电阻率技术的一个改进[J].高压物理学报,1988,2(4). |
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| 作者姓名： | 古成钢 谢盘海 王金贵 经福谦 |
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| 作者单位： | 成都科技大学应用物理研究所
(古成钢)，西南流体物理研究所
(谢盘海，王金贵)，西南流体物理研究所(经福谦) |
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| 摘 要： | 对A. C. Mitchell等的测量冲击压缩下绝缘材料电阻率的技术做了改进，其主要之点是，在测量电路中增加了一个记录冲击波进入试件的电支路，并在新支路中串接一个基准电阻。这样做的好处是：（1）便于提高试件电阻信号的电平，或提高试件电阻的可测上限范围；（2）可以用基准电阻的实测值对试件的实测电阻值进行校核；（3）可以同时测得试件中的冲击波速度值。文中还以聚四氟乙烯材料的实测结果为例，对本方法的特点做了初步讨论。
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| 关 键 词： | 冲击压缩 电阻测量 绝缘材料 |
| 收稿时间： | 1988-09-01; |
AN IMPROVEMENT ON RESISTANCE MEASURING TECHNIQUE OF INSULANT UNDER SHOCK COMPRESSION |
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| Gu Chenggang,Xie Panhai Wang Jingui,Jing Fuqian.AN IMPROVEMENT ON RESISTANCE MEASURING TECHNIQUE OF INSULANT UNDER SHOCK COMPRESSION[J].Chinese Journal of High Pressure Physics,1988,2(4). |
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| Authors: | Gu Chenggang Xie Panhai Wang Jingui Jing Fuqian |
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| Institution: | 1. Institute of Applied Physics, Chengdu University of Science and Technology, Chengdu 610065, China;2. Southwest Institute of Fluid Physics, Chengdu 610003, China |
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| Abstract: | An improved technique, in comparison with that of the Mitchell, et al, on measuring the resistance of insulant under shock compression is proposed in this paper. The main point of the improvement is adding a circuit branch with an etalon resistance connected in series in it , for monitoring the shock-wave arrival time entering the sample, in the measuring electrical circuit. Advantages of the improve -ment are:(1) it is in favour of enhancing the sample resistance signal magnitude, or extending the upper measurable eimit of the sample resistance;(2)the etalon resistance could be used to check the measured value of the sample resistance; and(3) the shock velocities in the sample were obtained simultaneously. A measurement of teflon specimen is given as an example. A brief discussion of the characteristics of the improvement is given. |
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| Keywords: | shock compression resistance measurement insulant |
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